AA1851

AA1851 (American Airlines) is a multi-stop service on 11 routes, busiest Miami to Las Vegas. Of 928 departures recorded from October 2024 to July 2026, 76.3% left on time, according to the US BTS.

Recorded departures by month

All legs under this number combined; see the leg table.

The most recent periods19 periods
PeriodDepartures 2025Departures 2026Change vs last year
January6236▼ 41.9%
February5228▼ 46.2%
March5231▼ 40.4%
April6053▼ 11.7%
May3142▲ 35.5%
June3021▼ 30.0%
July3144▲ 41.9%
August31––
September30––
October31–in progress
November57––
December45––
Year to date (Jan–Jul)318255▼ 19.8%

according to the US BTS · October 2024 → July 2026

On-time departures by month

All legs combined

On time = departure within 15 minutes of schedule. Non-cancelled flights with a recorded delay only.

The most recent periods19 periods
PeriodOn time 2025On time 2026Change vs last year
January69.0%91.2%▲ 32.2%
February59.6%66.7%▲ 11.8%
March84.0%50.0%▼ 40.5%
April70.7%60.4%▼ 14.6%
May74.2%71.4%▼ 3.7%
June86.7%95.0%▲ 9.6%
July90.3%86.4%▼ 4.4%
August100.0%––
September96.7%––
October96.8%–in progress
November77.2%––
December75.0%––
Year-to-date average (Jan–Jul)76.4%74.4%▼ 2.5%

according to the US BTS · October 2024 → July 2026

Average departure delay by month

All legs combined

according to the US BTS · October 2024 → July 2026

Cancelled departures by month

All legs combined
The most recent periods19 periods
PeriodCancelled 2025Cancelled 2026Change vs last year
January42▼ 50.0%
February01–
March21▼ 50.0%
April20▼ 100.0%
May00–
June01–
July00–
August0––
September0––
October0–in progress
November0––
December1––
Year to date (Jan–Jul)85▼ 37.5%

according to the US BTS · October 2024 → July 2026

This is not a forecast

This is a historical record of departures already flown, not a forecast for your flight.

This number flies several legs

Several legs: the headline figure averages all of them. See the leg table.

Cancellation share

  • Not cancelled 98.3% 912
  • Cancelled 1.7% 16

Share of all recorded flights in the period, all legs. · Oct 12, 2024 → Jul 31, 2026

On time, leg by leg

  1. MIA–LAS260 90.3%
  2. DFW–GRR174 71.0%
  3. GRR–DFW173 66.1%
  4. LAS–MIA127 71.2%
  5. ORD–FLL52 92.2%
  6. CLT–BDL43 67.4%
  7. BDL–CLT36 61.1%

Departures within 15 minutes of schedule; small figure = departures recorded.

Legs flown under this number

7
Monthly figures
PeriodDepartures With departure delay recordedOn time Cancelled
October 2024 40 40 87.5% 0
November 2024 59 59 62.7% 0
December 2024 62 60 71.7% 2
January 2025 62 58 69.0% 4
February 2025 52 52 59.6% 0
March 2025 52 50 84.0% 2
April 2025 60 58 70.7% 2
May 2025 31 31 74.2% 0
June 2025 30 30 86.7% 0
July 2025 31 31 90.3% 0
August 2025 31 31 100.0% 0
September 2025 30 30 96.7% 0
October 2025 31 31 96.8% 0
November 2025 57 57 77.2% 0
December 2025 45 44 75.0% 1
January 2026 36 34 91.2% 2
February 2026 28 27 66.7% 1
March 2026 31 30 50.0% 1
April 2026 53 53 60.4% 0
May 2026 42 42 71.4% 0
June 2026 21 20 95.0% 1
July 2026 44 44 86.4% 0

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